thrusted tail grips

[kahn10]

just finished reassembling my plastic thrusted tail grips as per mike(of the ski and golf)'s stroke of genius......with one small addition.i ended up cutting off some very thin slivers of solder and dropping them thru the holes in the hub into the recesses in the shaft testing each time till i got the perfect combo of free moving grip combined with cranking cap screw up as tightly as poss then reapplied loctite.they feel pretty damn good........now if only the rain would piss off:smokin:

[istandalone]

umm, putting slivers of solder into the thrust bearing housing? if you need to do that, something is wrong with your setup.

[kahn10]

not into the thrust bearing housing.when first fitted using supplied capscrews with capscrews hard against tailshaft you could push/pull the grips about 2mm along hub and had a good 3cm plus of loose sideways movement at tip of tailblades.......a sloppy mess that was apparently supposed to improve under load. used skigolfmike's solution of loosening grubscrews on hub(one straight out the other 4 hours of heating stripping tapping in star drives reheating flogging out grub screw DRILLING) rotating the hub 90 degrees on the shaft then using the tailgrip capscrews going right thru the hub and locating the hub on the shaft. when tightened up one grip was slightly stiff and the other locked up.slightly different sized recesses in the shaft.rather than backing the capscrews off and relying on the grubs to lock the hub on i pointed one grip vertically took it off and dropped slivers of solder thru the threaded hole in the hub into bottom of the recess in the shaft refitting the grip each time till i could tighten the capscrew completely while having no restriction on the grip bearings.then locktight in rotated the tail 180 and did the same again.the tail feels awesome all that slop is gone and the capscrews are locked hard into the tailshaft recesses.just gotta wait till it stops raining to test fly......swore i wouldn't hover the hurri in the lounge again:...:

[chopperau]

Apparently many people have this issue and the solution of using the grove in the shaft where the grub screw lock in to tight the tight the grip bolts is not sound.:thumbdown:
Grub srew are design to be tighten to the grove in the shaft to lock other wise will slip no matter how tight.
Say if you have a 2mm play then you should shorten the bolt about 2.5mm that will give you.5 mm to ajust the tightness is the assembly.
This is how I did to my Gaui metal thrust grip upgrade only find out the kit had a missing washer in between the ball bearing (the washer need to be smaller then the outer shell of the ball bearing) and thrust bearing to stop the ball bearing from lock up under load and cause the tail to wag .After fitting the washer it work perfect but in hind sight may be the botls is the right length if Gaui had fitted the washers.

GAUI PLEASE FIX THIS PROBLEM the upgrade is very good only if only it was fine tune correctly before release.:thumbup:

[kahn10]

agreed.......you shouldn't have to piss about,should be a bolt on fix :roll: barp wrong answer you shouldn't need a bolt on fix......
the capscrews are now going into the shaft recesses - i just used the solder to control the depth.there is not a joints chance in a hippy commune that the hub would hold on only being clamped on the shaft :smokin: .i have stacked the bearings like this - hub, thrust washer small hole,thrust ball cage,thrust washer large hole,bearing. i figure the 1st washer will lock against the hub then letting the grip float and rotate on the thrust bearing.the cap screw then only contacts the inside of the bearing and the center thrust washer contacts the outside of the bearing.hopefully this will work well,it feels nice........
they should come standard with the plastic thrusted tail in a functional condition(and ten complimentary batteries) with the metal set up as the upgrade.....

marco

[chopperau]

This is exactly what I ment after the second thrust washer there should be a washer just like on the main grip (or any heli with thrust bearing) before the ball bearing or else it will blind under load ,althrough it will fell smooth when you test on the ground .Have you fly yet ?
Without the washer it will perform worse than the original grip with no thrust bearing.

[kahn10]

thanks for heads up bro......no haven't had a chance to fly yet and now gonna be bloody cautious when i do.i let you know how it went

[woz]

seems like we have all been there ! I eventually got a complete tail shaft,attached thrust bearing assembly direct from Gaui.
But agree totally this was NOT thought out properly before release.
I eventually opted for the thrusted HTR (raptor) blade grips which have thrust bearing s as well.
Just added metal tail case and is rock solid. quiet impressed with the tail case!
BTW they also supplied a different bolt which was only partially threaded.

[kahn10]

yeah i kind of figured having the large hole thrust washer facing the bearing would stop the inner bearing race from binding with the washer.....i'll see if it works if it does i'll draw an exact picture and post.the raptor/trex thrusted grip set up sounds cool but i'm temporarily
(i hope) kind of blocked from getting anymore helicrack(**** that made me laugh(after coffee)kenneth) for a tick.hoping i can get the gaui set up working well tho i've got their full cnc tail set up waiting for me at a mate's(suckered him into being a gaui agent hahahaha) CAN'T PAY FOR IT(what frustration).once i got this shit(bitter half:roll:) sorted out a holiday in paradise with a couple of good buggers(should rephrase that ha ha) sounds like a good idea.......and ya can take electrics on the plane with you